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Old 03-28-2011, 05:41 PM   #1
Charles.SC
 
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Wiring an old 220 line to a new plug


I have two old woodworking machines that have been sitting idle for about two decades. They originally came form an old wooden boat factory when it went under around 1958. They are both 220 motors. The wires are colored green, white and black. How do I wire these wires to a new 220 plug?

I also have to wire the sockets that are already in place. However, they don't have any plugs. The colors in the boxes are white, black and red..............and of course a stripped ground wire. I guess that I can ask Home Depot how to wire these ................ but what do they represent?

Last edited by Charles.SC; 03-28-2011 at 05:48 PM. Reason: spelling
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Old 03-28-2011, 05:51 PM   #2
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Wiring an old 220 line to a new plug


"220", or more accurately 240v, is the voltage, and is only part of the equation.

What do the motors draw?
What size are the circuits that you are looking to hook up to?

I hope there is a ground wire with the red, black and white at the wall box.
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Old 03-28-2011, 06:13 PM   #3
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Wiring an old 220 line to a new plug


Both pieces of equipment can be wired for 110 or 240. They are both wired for 240 and the wires/cords are in excellent condition. My father bought both these pieces of equipment around 1958 from the old boat shop that went out of business.

The bandsaw draws 7.6 / 3.8 amps voltage 110/220
The tablesaw draws 12.6 / 6 amps voltage 110/230

The panel box for the 240 outlet has 2 20 amps breakers that compose the 240 circuit, which I guess means that the circuit can draw 40 amps.

There is a stripped wire in the new wall box which I guess is a ground wire.

What other information do you need?

Last edited by Charles.SC; 03-28-2011 at 06:16 PM. Reason: spelling and more information
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Old 03-28-2011, 06:46 PM   #4
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Wiring an old 220 line to a new plug


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Originally Posted by Charles.SC View Post

The panel box for the 240 outlet has 2 20 amps breakers that compose the 240 circuit, which I guess means that the circuit can draw 40 amps.
No, this is a 20A/240v circuit. Actually since there is a white, black and red it is (or can be) a 120/240v circuit.

From the machines you would use the white and black as your two hots. Green is ground.

From the wall use the black and red as your two hots. I assume the striped is the ground. Is it green or green/yellow?

A straight 240v circuit such as your motors do not use or require a neutral. This is why you can use the white and black in the cords as two hots.
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